| Houston to Selargius | 5,640.33 mi (9,077.24 km) |
| Houston to Selvazzano Dentro | 5,527.51 mi (8,895.66 km) |
| Houston to Senago | 5,411.11 mi (8,708.34 km) |
| Houston to Senigallia | 5,649.84 mi (9,092.54 km) |
| Houston to Seravezza | 5,514.14 mi (8,874.14 km) |
| Houston to Seregno | 5,411.50 mi (8,708.97 km) |
| Houston to Seriate | 5,431.67 mi (8,741.43 km) |
| Houston to Sermoneta | 5,723.15 mi (9,210.52 km) |
| Houston to Serramanna | 5,623.33 mi (9,049.87 km) |
| Houston to Serravalle Pistoiese | 5,543.10 mi (8,920.75 km) |
| Houston to Sessa Aurunca | 5,776.18 mi (9,295.86 km) |
| Houston to Sesto Calende | 5,385.06 mi (8,666.41 km) |
| Houston to Sesto Fiorentino | 5,560.99 mi (8,949.55 km) |
| Houston to Sesto San Giovanni | 5,417.03 mi (8,717.87 km) |
| Houston to Sestri Levante | 5,468.76 mi (8,801.12 km) |
